* Add batch data plane commands:

-- Add custom commands
-- Add auto execution data plane codes
-- Import mgmt commands experience

* Added file stream support

* bug fixes

* Fixed regex raw strings

* Added support for JSON input

* Custom and type validation (#4)

* Additional validation and parsing

* Some cleanups

* Minor code refinements

* Fix pylint errors and get rid unused codes.

* List and type validation (#5)

* list and type validation

* Remove auth kwargs

* Fixed typo

* clean pylint error and add data plane command test.

* Bug fixes (#6)

* Remove auth kwargs

* Bug fixes

* Fixed kwargs

* Move the update pool command to custom command.

* Add custom commands test cases

* Tests and delete confirmation (#7)

* Added some tests

* Bug fixes

* Added tests to sln

* Delete confirmation

* Some pylint cleanup

* More tests and fixes (#8)

* Fix pylint and test errors.

* Following PEP8 complaint.

* Use this decroator on doc transfer

* Deferred imports for performance (#9)

* streamlined imports

* pylint fixes

* Renamed AzureDataPlaneCommand

* PyLint and PEP8 clean up.

* Use single parameter for storage account id and name.

* Review feedback + help fixes (#10)

* node-user -> node user

* Review feedback

* More feedback fixes

* pep fixes

* fixed underscore

* More touch ups

* Review fixes (#11)

* Command refinements

* More command feedback

* Test fixes

* More tests

* Add enum list for vmsize and thumbprint algorithm.

* Streamlined commands (#13)

* streamlined commands

* Updated tests

* Fixed arg loading test

* Further command refinements (#14)

* support silent args

* Fixed pool error message

* Further command editing

* last fixes

* Fixed tests (#15)

* Change the coding style.